Home / 8,458.08-12,687.92-2,218.16

Finding the Fourth Proportional to 8,458.08, 12,687.92 and 2,218.16

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Solution

The fourth proportional to 8,458.08, 12,687.92 and 2,218.16 is: 3,327.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,458.08 : 12,687.92 = 2,218.16 : x
  2. Step 2: Convert to fraction form
    8,458.08/12,687.92 = 2,218.16/x
  3. Step 3: Cross multiply
    8,458.08x = 12,687.92 × 2,218.16
  4. Step 4: Simplify right side
    8,458.08x = 28,143,836.63
  5. Step 5: Solve for x
    x = 28,143,836.63/8,458.08
  6. Step 6: Final answer
    x = 3,327.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.